East Kimberley remotely sensed datasets

This compilation data release is a selection of remotely sensed imagery used in the Exploring for the Future (EFTF) East Kimberley Groundwater Project.

Datasets include:

• Mosaic 5 m digital elevation model (DEM) with shaded relief

• Normalised Difference Vegetation Index (NDVI) percentiles

• Tasselled Cap exceedance summaries

• Normalised Difference Moisture Index (NDMI)

• Normalised Difference Wetness Index (NDWI)


The 5m spatial resolution digital elevation model with associated shaded relief image were derived from the East Kimberley 2017 LiDAR survey (Geoscience Australia, 2019b).


The Normalised Difference Vegetation Index (NDVI) percentiles include 20th, 50th, and 80th for dry seasons (April to October) 1987 to 2018 and were derived from the Landsat 5,7 and 8 data stored in Digital Earth Australia (see Geoscience Australia, 2019a). Tasselled Cap Exceedance Summary include brightness, greenness and wetness as a composite image and were also derived from the Landsat data. These surface reflectance products can be used to highlight vegetation characteristics such as wetness and greenness, and land cover.


The Normalised Difference Moisture Index (NDMI) and Normalised Difference Water Index (NDWI) were derived from the Sentinel-2 satellite imagery. These datasets have been classified and visually enhanced to detect vegetation moisture stress or water-logging and show distribution of moisture. For example, positive NDWI values indicate waterlogged areas while waterbodies typically correspond with values greater than 0.2. Waterlogged areas also correspond to NDMI values of 0.2 to 0.4.


Geoscience Australia, 2019a. Earth Observation Archive. Geoscience Australia, Canberra. http://dx.doi.org/10.4225/25/57D9DCA3910CD


Geoscience Australia, 2019b. Kimberley East - LiDAR data. Geoscience Australia, Canberra. C7FDA017-80B2-4F98-8147-4D3E4DF595A2 https://pid.geoscience.gov.au/dataset/ga/129985

Simple

Identification info

Date (Creation)
2020
Date (Publication)
2020-06-16T03:59:32
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/134108

Citation identifier
Digital Object Identifier/https://dx.doi.org/10.26186/134108

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Commonwealth of Australia (Geoscience Australia)

 Voice
Author

Halas, L.
Author

Symington, N.
Author

Wilford, J.
Status
Final
Point of contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Halas, L.
Resource provider

Minerals, Energy and Groundwater Division
Spatial representation type
Topic category
  • Geoscientific information

Extent

N
S
E
W


Temporal extent

Time period
2016-11-01 2020-06-30
Maintenance and update frequency
Not planned

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

theme.ANZRC Fields of Research.rdf

  • Hydrogeology

  • ENVIRONMENTAL SCIENCES

  • EARTH SCIENCES

Project

  • Exploring for the Future

Project

  • EFTF

Place

  • East Kimberley

Theme

  • Groundwater

Sub-Topic Category

  • Sentinel-2

Sub-Topic Category

  • NDMI

Sub-Topic Category

  • NDWI

Sub-Topic Category

  • vegetation water stress

Sub-Topic Category

  • canopy moisture

Sub-Topic Category

  • soil moisture

Sub-Topic Category

  • water bodies mapping

Sub-Topic Category

  • Tasseled Cap

Sub-Topic Category

  • NDVI

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Associated resource

Association Type
Was derived from
Title

Kimberley East - LiDAR data

Citation identifier
129985

Citation identifier
bea01a3e-76f6-4e3f-9bfc-5f07d912d8e5

Website

https://pid.geoscience.gov.au/dataset/ga/129985

Link to eCat metadata record landing page

Associated resource

Association Type
Cross reference
Title

Surface Reflectance 25m Geomedian 2.0.0

Citation identifier
120374

Citation identifier
bcf969df-6213-4e5c-86d4-64e3b53de64a

Website

https://pid.geoscience.gov.au/dataset/ga/120374

Link to eCat metadata record landing page

Associated resource

Association Type
Cross reference
Title

Copernicus Australia Hub Sentinel-2 MSI

Citation identifier
101160

Citation identifier
266c5d04-14be-eaf8-e053-12a3070a3e8e

Website

https://pid.geoscience.gov.au/dataset/ga/101160

Link to eCat metadata record landing page

Associated resource

Association Type
Cross reference
Title

Tasseled Cap Wetness Percentiles 25m

Citation identifier
135494

Citation identifier
964b5d03-08f6-4338-a619-43befbfbe777

Website

https://pid.geoscience.gov.au/dataset/ga/135494

Link to eCat metadata record landing page

Associated resource

Association Type
Cross reference
Title

Normalised Difference Vegetation Index 25 v. 2.0.0

Citation identifier
102287

Citation identifier
b9c47425-6a34-4bb6-bcc0-6f9bfebaf70c

Website

https://pid.geoscience.gov.au/dataset/ga/102287

Link to eCat metadata record landing page

Associated resource

Association Type
Operated on by
Title

East Kimberley Remotely Sensed Products WMS

Citation identifier
140105

Citation identifier
dbf32032-38dc-433d-b0cb-7cbdfbbf5d4c

Website

https://pid.geoscience.gov.au/service/ga/140105

Link to eCat metadata record landing page

Associated resource

Association Type
Operated on by
Title

East Kimberley Remotely Sensed Products WMTS

Citation identifier
140106

Citation identifier
de88cea9-e163-485e-8bb5-4a3f03214d9b

Website

https://pid.geoscience.gov.au/service/ga/140106

Link to eCat metadata record landing page

Associated resource

Association Type
Operated on by
Title

East Kimberley Remotely Sensed Products WCS

Citation identifier
140107

Citation identifier
f9e921e1-5521-4e3e-a97d-1eb6b2ecccd3

Website

https://pid.geoscience.gov.au/service/ga/140107

Link to eCat metadata record landing page

Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice
OnLine resource

Data package [7.3 GB]

Data package [7.3 GB]

Distribution format

  • tif

OnLine resource

East Kimberley Remotely Sensed Products WMS

East Kimberley Remotely Sensed Products WMS

Distribution format

  • OGC:WMS

OnLine resource

East Kimberley Remotely Sensed Products WMTS

East Kimberley Remotely Sensed Products WMTS

Distribution format

  • OGC:WMTS

OnLine resource

East Kimberley Remotely Sensed Products WCS

East Kimberley Remotely Sensed Products WCS

Distribution format

  • OGC:WCS

Resource lineage

Statement

Lineage statements are included for each unique dataset or group of datasets.


The 5m spatial resolution digital elevation model (DEM) mosaic raster was resampled from orthometric 1m mosaic DEM using the cubic convolution value assigning method in ArcGIS. The shaded relief raster represents ground surface illuminated at 45 degree altitude with North West azimuth, and 10 times vertical exaggeration at 5m spatial resolution. LiDAR data were acquired by AAM Pty Ltd in June 2017 using Optech Galaxy LiDAR unit.


Authors acknowledge the tremendous work of the Geoscience Australia Elevation team who carried out post processing, classification, production, quality assurance and delivery of all released LiDAR data products (see Geoscience Australia, 2019). In particular, the authors thank Graham Hammond, Kevin Kennedy, Jonathan Weales, Grahaem Chiles, Robert Kay, Shane Crossman, and Simon Costelloe.


The Normalised Difference Vegetation Index (NDVI) was calculated for each Landsat surface reflectance observation within the period of interest (April to October 1987-2018). Percentiles - 20th, 50th and 80th were calculated for each pixel.


Tasselled Cap brightness, greenness and wetness coefficients (see Crist, 1985) were calculated for period 1987 to 2018. Brightness, greenness and wetness exceedance was identified where the respective coefficient exceeded a particular threshold. The mean and standard deviation statistics of brightness, greenness and wetness were calculated on pixel basis for the available time series.


Authors acknowledge innovative work of the Geoscience Australia Digital Earth Australia team for providing support and access to Data Cube Collection of imagery. In particular, authors thank Vanessa Newey, Bex Dunn, and Leo Lymburner for providing a script and guidance on calculating Tasselled Cap summary statistics (see https://github.com/opendatacube/datacube-stats/blob/master/datacube_stats/statistics/uncategorized.py).


A weighted geometric median statistic was applied to Sentinel-2 data to derive a median reflectance from the period of 2015 to 2018 (Roberts et al., 2017). The Normalised Difference Moisture Index (NDMI; Gao, 1996) and Normalised Difference Water Index (NDWI; McFeeters, 1996) were calculated from the median reflectance.


Crist, E. P. (1985) A TM tasselled cap equivalent transformation for reflectance factor data. Remote Sensing of Environment 17(3), 301–306


Gao, B.C., (1996). NDWI—A normalized difference water index for remote sensing of vegetation liquid water from space. Remote sensing of environment, 58(3), 257-266.


Lewis, A., Oliver, S., Lymburner, L., Evans, B., Wyborn, L., Mueller, N., Raevksi, G., Hooke, J., Woodcock, R., Sixsmith, J., Wu, W., Tan, P., Li, F., Killough, B., Minchin, S., Roberts, D., Ayers, D., Bala, B., Dwyer, J., Dekker, A., Dhu, T., Hicks, A., Ip, A., Purss, M., Richards, C., Sagar, S., Trenham, C., Wang, P. & Wang, L.-W. The Australian Geoscience Data Cube — Foundations and lessons learned. Remote Sensing of Environment.


McFeeters, S.K., (1996). The use of the Normalized Difference Water Index (NDWI) in the delineation of open water features. International journal of remote sensing, 17(7), 1425-1432.


Roberts, D., Mueller, N., & McIntyre, A. (2017). High-dimensional pixel composites from earth observation time series. IEEE Transactions on Geoscience and Remote Sensing, 55(11), 6254-6264.


Roberts, D., Dunn, B., Mueller, N., (2018). Open Data Cube Products Using High-Dimensional Statistics of Time Series. International Geoscience and Remote Sensing Symposium. Valencia, Spain: IEEE Geoscience and Remote Sensing Society.

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/2423bd15-cd41-4c70-a22f-2d2c574bf6ad

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Halas, L.

Type of resource

Resource scope
Dataset
Name

East Kimberley remotely sensed datasets

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/134108

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/2423bd15-cd41-4c70-a22f-2d2c574bf6ad

Metadata linkage

https://ecat.ga.gov.au:80/geonetwork/srv/eng/catalog.search#/metadata/2423bd15-cd41-4c70-a22f-2d2c574bf6ad

Date info (Creation)
2020-01-31T04:26:36
Date info (Revision)
2020-01-31T04:26:36

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/134108

 
 

Spatial extent

N
S
E
W


Keywords

EFTF Exploring for the Future Groundwater NDMI NDVI NDWI Sentinel-2 Tasseled Cap canopy moisture soil moisture vegetation water stress water bodies mapping
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES ENVIRONMENTAL SCIENCES Hydrogeology

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